Folks who love the wonder of the human singing voice without instrumentation may be followers of the NBC show “The Sing-Off.”

If so, they’re likely to remember the six men from Puerto Rico who call themselves Nota.

Nota won the first edition of the network’s a cappella singing competition on Dec. 21, 2009.

Jose Angel Rodriguez, Johnny Figueroa, Juan Eli Diaz, David Pinto, Edgar Rios and Ludwig Henderson will perform Saturday night at Syracuse University for the keynote concerts for SU’s first Social Media and A Cappella Conference, which runs Friday through Sunday at SU’s Newhouse School of Public Communications.